Combined portable oven and proof-box.



l. FAULS.

cOmlNEO PORTABLE OVEN ANO PROOF Box.

APPLICATION FILED APR.25,19|7 @33,959 'Ptentedept 4, 1917.

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L FAULS.

COMBINED PORTABLE ovm AND www Box.

APPLICTIUN FILED PR. 25; gl. ggg A Paened Sept. 4;, 191V?.

2 SHEETS-SHEET 2.

as 34 which form the floor of the'hearth, while the location of the upright angle irons 30 and 3l against the end walls of the oven insure the provision of intervening flue venient manner, as upon legs 58 which extend to the bottom of the oven chamber. .All of the burners 37 may be served from a common gas pipe, as 38, which extends horilzontally is front of the oven. The heated products of combustion are permitted to circulate through the flue spaces 29 and 35 at the margins of the hearths 25 and 26, and they escape from the oven chamber through a stack, as 39. When this stack is centrally positioned at the top of the oven, as shown, a horizontal baille plate 59, having openings 60 is preferably located near the top of the oven chamber and extends the full distance between the side and end walls of the oven. The front wall, as 40, of the oven, is shown as being provided with two door frames 41 and 42. The door frame 41 serves to receive a panel 43 through which the burners 37 are extended and this panel is preferably also provided with a damper 44. If desired, brackets, as 45, may be secured against the panel 43 adjacent its opposite endsfor supporting the gas pipe 38.

' The door panel 42 carries two sets of doors, as 46 and 47, one for serving each of the hearths 25 and 26. As the oven will usually be constructed of such small size that a peel will not ordinarily be used, the

doors 46 and 47 preferably open inwardly.

As shown, leach doorcomprises upper and lower panels 48 and 49. In the closed position of the door, these panels meet upon a horizontal line at the mid height of the corresponding door opening and the panels aremounted to swing upon horizontal'pivots 50 and 51 at their upper and lower edges respectively. The two panels 48 and 49`of each door are operatively connected through a pair of intermeshing gear segments 52 and 53, one rigidly connected with eachpanel. Each door may accordingly be opened or closed by engaging either of its panels,l or one of the corresponding gear segments 52, 53. The inward movement of thepanels for opening the door insures that the margins of the door opening will be relatively cool to facilitate the introduction and removal of loaves, without the use of a peel. As the upper panel 48 of each door extends vhorizontally inward from the upper `edge of the door opening in its own |position', it

heat from the oven chamber when'the correchamber.

spending door is opened. The arrangement enables a uniform baking temperature to be obtained throughout the entire area of both "liearths while the damper 44 and the openings 57 in the bottom of the oven insure the admission of suiiicient air to obtain perfect combustion of the gas. y

Vhile the chamber of the proof box l10 is warmed by the transmission of heat downwardly from the oven 11,*it is important that this transmission of heat should not be too rapid and that it should extend. uniformly to the entire chamber of the proof box.. F or this reason the bottom of the oven 'chamber is preferably formed `with the intermediate insulating layer 24. The transmission of heat to the chamber of the 'proof box 10` is rendered even more gradual and uniform if the cover 54 ofthe lproof box is made in the form of a shallow pan and this pan is filled withwater. -As shown, the coverV 54 is provided with an4 upstanding marginal flange 61 but this'flange does not extend to the corresponding horizontal angles 15. The openings 56 are those located above the-rim of the said pan and air entering these openings is drawn over the surface of the waterfcontained in the pan before enteringlthe kchamber `of the oven 11 through the openings 57. The usefof Waterin-the said pan accordingly serves to improve the bakingby supplying `moisture to the bake chamber.

I claim as my invention:

l. In combination, a proof box having an imperforate flat cover, an oven having horizontal dimensions substantially" equal to those of the `proof box superimposed upon the proof box, the bottom of the oven being spaced apart from the cover of the proof box to provide a fluespace between said and the with an parts having a free inlet openin bottom of the loven lbeing forme Y opening connecting said iiue space with the oven'chamben-a gas burner within 4the ovenchamber, and a flue leading out of the oven 2. In combination, a proof box, a water pan constituting a cover for the proofbox and Aa bake oven superimposed upon the proof box above the said water pan.

3. In combination, a proof box, a water pan constituting a cover for the proof box, an oven superimposed upon the proof box above the said water pan, the bottom of the oven being spaced apart from the rim of the water pan to provide a iiue space between saidparts having a free inlet openv`ing andthe bottom of theoven being formed with an opening connecting said flue space with the ovenchamber, a gas burner within the oven chamber, and a flue leadingout of the oven chamben u serves to substantially restrict the escape of y 4. In combination, a proof box, a water pan constituting a cover for the proof box,

ann oven having horizontal dimensions substantially equal to those of the proof box and Water pan superimposed upon the proof Copies of and a bake oven havinghorizontal dirnen` sions substantially equal to those of the proof box and Water pan superimposed upon the proof box above the said Water pan.

6. In combination, a proof box, a Water pan constituting a cover for the proof box, and a bake oven superimposed upon the proof box above but spaced apart from the said Water pan, the bottoni of the oven being formed With an opening` 'connecting the space immediately over the water pan With the oven Chamber.

JOHN FAULDS.

this patent may be obtained for five cents each, by addressing the"commissioner of Patente.

Washington, D. G. 

